Process for lightening direct dyeing or oxidation dyeing in the presence of at least one organic amine, device therefor and anhydrous composition

ABSTRACT

A process for dyeing human keratin fibers in the presence of at least one oxidizing agent, comprising applying to the fibers at least one anhydrous composition (A) comprising at least one fatty substance and at least one surfactant, at least one composition (B) comprising at least one oxidizing agent, and at least one composition (C) comprising at least one dye chosen from direct and oxidation dyes, and at least one organic amine having a pKb at 25° C. of less than 12. The present disclosure also relates to a multi-compartment device containing, in separate compartments, the compositions (A), (B), and (C); and a method of making a ready-to-use composition. The present disclosure also relates to an anhydrous composition comprising at least one fatty substance, at least one surfactant, at least one dye, and at least one organic amine.

This application claims benefit of U.S. Provisional Application No. 61/006,594, filed Jan. 23, 2008, the contents of which are incorporated herein by reference. This application also claims benefit of priority under 35 U.S.C. § 119 to French Patent Application No. FR 0760273, filed Dec. 21, 2007, the contents of which are also incorporated herein by reference.

Disclosed herein is a process for dyeing human keratin fibers in the presence of at least one oxidizing agent, comprising the use of at least one cosmetic anhydrous composition comprising at least one fatty substance, at least one surfactant, at least one oxidizing composition, and at least one composition comprising at least one dye and at least one organic amine, the amine having a pKb less than 12 at 25° C.

Also disclosed herein is at least one anhydrous composition comprising at least one fatty substance, at least one surfactant, at least one dye, and at least one organic amine.

Still further disclosed herein is a multi-compartment device or kit comprising at least one first compartment containing at least one anhydrous cosmetic composition, at least one second compartment containing at least one oxidizing composition, and at least one third compartment containing at least one composition comprising at least one dye and at least one organic amine.

Among the methods for dyeing human keratin fibers, such as the hair, non-limiting mention may be made of oxidation dyeing or permanent dyeing. For example, this dyeing method involves the use of at least one oxidation dye precursor and usually at least one oxidation base optionally combined with at least one coupler.

In general, oxidation bases are chosen from ortho- or para-phenylenediamines, ortho- or para-aminophenols, and heterocyclic compounds. These oxidation bases are colorless or weakly colored compounds, which, when combined with oxidizing products, can give access to colored species via a process of oxidative condensation.

The shades obtained with these oxidation bases may often be varied by combining them with at least one coupler, these couplers being chosen, for example, from aromatic meta-diamines, meta-aminophenols, meta-diphenols, and certain heterocyclic compounds, such as indole compounds.

The variety of molecules used as oxidation bases and couplers can allow a wide range of colors to be obtained.

Direct dyeing or semipermanent dyeing is also known. The process conventionally used in direct dyeing involves applying to the keratin fibers direct dyes, which are colored and coloring molecules that have affinity for the fibers, leaving them on for a time to allow the molecules to penetrate, by diffusion, into the fiber, and then rinsing them off.

The direct dyes frequently used are, for example, chosen from nitrobenzene, anthraquinone, nitropyridine, azo, methine, azomethine, xanthene, acridine, azine, and triarylmethane direct dyes.

This type of process does not generally involve the use of an oxidizing agent to develop the coloration. However, it is possible to use one in order to obtain, along with the coloration, a lightening effect. Such a process is then referred to as direct dyeing or semipermanent dyeing under lightening conditions, a subject of the present disclosure.

Processes of permanent or semipermanent dyeing under lightening conditions thus may involve using, for example, along with the dye composition, an aqueous composition comprising at least one oxidizing agent, under alkaline pH conditions in the vast majority of cases. This at least one oxidizing agent may degrade the melanin of the hair, which, depending on the nature of the oxidizing agent present, may lead to less pronounced lightening of the fibers. Thus, for relatively weak lightening, the at least one oxidizing agent may be, for example, hydrogen peroxide. When more substantial lightening is desired, peroxygenated salts, such as persulfates, may be used in the presence of hydrogen peroxide.

At least one difficulty may arise from the fact that these processes are performed under alkaline conditions and that the alkaline agent most commonly used is aqueous ammonia. Aqueous ammonia may be useful in processes of this type. The reason for this is that it can allow the pH of the composition to be adjusted to an alkaline pH to enable activation of the oxidizing agent. For example, this agent may also cause swelling of the keratin fiber, with opening of the scales, which may promote the penetration of the oxidizing agent, and also of the dyes, for example the oxidation dyes, into the fiber, and thus may increase the efficacy of the dyeing reaction.

However, this basifying agent is very volatile, which users may find disagreeable due to the characteristic strong, rather unpleasant odour of ammonia that is given off during the process.

Furthermore, the amount of ammonia given off may require the use of higher contents than necessary in order to compensate for this loss. This may affect the user, who not only may be inconvenienced by the odour, but may also be confronted with greater risks of intolerance, for instance irritation of the scalp, such as stinging.

The option of replacing all or at least some of the aqueous ammonia with at least one other standard basifying agent frequently does not lead to compositions that are as efficient as those based on aqueous ammonia, for example since these basifying agents may not afford sufficient lightening of pigmented fibers in the presence of an oxidizing agent.

Thus, there is a need in the art for dyeing processes performed in the presence of at least one oxidizing agent, which do not have at least one of the drawbacks of the existing processes, such as due to the presence of large amounts of aqueous ammonia, but at the same time maintain at least some of the efficiency, as regards the dyeing power obtained, the chromaticity and the homogeneity of the coloration along the fiber. For example, the process according to the present disclosure can lead to strong colorations that allows gray hair to be covered.

Accordingly, one aspect of the present disclosure relates to a process for dyeing human keratin fibers in the presence of at least one oxidizing agent, comprising applying to the fibers:

at least one anhydrous cosmetic composition (A) comprising at least one fatty substance and at least one surfactant;

at least one composition (B) comprising at least one oxidizing agent;

at least one composition (C) comprising at least one dye chosen from oxidation dyes and direct dyes, and at least one organic amine whose pKb is less than 12 at 25° C.

The present disclosure also relates to a multi-compartment device comprising, in at least one first compartment, at least one anhydrous composition (A) comprising at least one fatty substance and at least one surfactant, in at least one second compartment, at least one composition (B) comprising at least one oxidizing agent, and, in at least one third compartment, at least one composition (C) comprising at least one dye chosen from oxidation dyes and direct dyes, and at least one organic amine having a pKb of less than 12 at 25° C.

The present disclosure also relates to at least one anhydrous composition comprising at least one fatty substance, at least one surfactant, at least one dye chosen from oxidation dyes and direct dyes, and at least one organic amine having a pKb at 25° C. of less than 12.

The present disclosure still further relates to a method of making a ready-to-use dyeing composition comprising separately making:

at least one anhydrous cosmetic composition (A) comprising at least one fatty substance and at least one surfactant;

at least one composition (B) comprising at least one oxidizing agent; and

at least one composition (C) comprising at least one dye chosen from oxidation dyes and direct dyes, and at least one organic amine whose pKb is less than 12 at 25° C.; and combining said compositions (A), (B), and (C) at the time of use.

At least one other characteristic and benefit of the present disclosure may emerge more clearly upon reading the description and the examples that follow.

The human keratin fibers treated by the process according to the present disclosure are, for example, the hair.

The dyeing process may be, for example, performed in the presence of an anhydrous composition (A).

For the purposes of the present disclosure, the term “anhydrous composition” means a composition with a water content of less than 5% by weight, for example less than 2% by weight, such as less than 1% by weight relative to the weight of the composition. The water may, for example, be in the form of bound water, such as the water of crystallization of salts, or traces of water absorbed by the starting materials used in the preparation of the compositions according to the present disclosure.

As has been mentioned, the at least one anhydrous cosmetic composition (A) comprises at least one fatty substance.

The term “fatty substance” means an organic compound that is insoluble in water at ordinary temperature (25° C.) and at atmospheric pressure (760 mmHg) (solubility of less than 5%, for example less than 1%, such as less than 0.1%). In addition, the fatty substances are soluble in organic solvents under the same temperature and pressure conditions, for instance chloroform, ethanol, or benzene.

For example, the at least one fatty substance may be chosen from compounds that are liquid or pasty at room temperature and at atmospheric pressure.

For example, the at least one fatty substance may be chosen from alkanes, fatty alcohols, fatty acids, fatty acid esters, fatty alcohol esters, mineral oils, plant oils, animal oils, synthetic oils, silicones, and waxes.

In the present disclosure, the fatty alcohols, fatty esters, and fatty acids may, for example, contain at least one linear or branched, saturated or unsaturated hydrocarbon-based group containing 6 to 30 carbon atoms, which is optionally substituted, such as with at least one hydroxyl group (for example 1 to 4 carbon atoms). If they are unsaturated, these compounds may comprise one to three conjugated or nonconjugated carbon-carbon double bonds.

As regards alkanes, these alkanes, comprising from 6 to 30 carbon atoms, are linear, branched, or possibly cyclic. Examples of which non-limiting mention may be made include hexane and dodecane.

As oils that may be used in the composition (A) of the present disclosure, non-limiting examples include:

hydrocarbon-based oils of animal origin, such as perhydrosqualene;

hydrocarbon-based oils of plant origin, such as liquid fatty acid triglycerides containing from 6 to 30 carbon atoms, for instance heptanoic or octanoic acid triglycerides, or alternatively, for example, sunflower oil, corn oil, soybean oil, marrow oil, grapeseed oil, sesameseed oil, hazelnut oil, apricot oil, macadamia oil, arara oil, castor oil, avocado oil, caprylic/capric acid triglycerides, for instance those sold by the company Stéarineries Dubois or those sold under the names MIGLYOL® 810, 812 and 818 by the company Dynamit Nobel, jojoba oil, and shea butter oil;

linear or branched hydrocarbons of mineral or synthetic origin, such as volatile or nonvolatile liquid paraffins, and derivatives thereof, petroleum jelly, liquid petroleum jelly, polydecenes, hydrogenated polyisobutene such as PARLEAM®; isoparaffins, for instance isohexadecane and isodecane;

linear or branched, saturated or unsaturated fatty alcohols containing from 8 to 30 carbon atoms, for instance cetyl alcohol, stearyl alcohol, mixtures thereof (cetylstearyl alcohol), octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, oleyl alcohol, or linoleyl alcohol;

partially hydrocarbon-based and/or silicone-based fluoro oils, for instance those described in Japanese Patent Publication No. JP-A-2-295 912; fluoro oils of which non-limiting mention may also be made include perfluoromethylcyclopentane and perfluoro-1,3-dimethylcyclohexane, sold under the names FLUTEC® PC1 and FLUTEC® PC3 by the company BNFL Fluorochemicals; perfluoro-1,2-dimethylcyclobutane; perfluoroalkanes such as dodecafluoropentane and tetradecafluorohexane, sold under the names PF 5050® and PF 5060® by the company 3M, or bromoperfluorooctyl sold under the name FORALKYL® by the company Atochem; nonafluoromethoxybutane and nonafluoroethoxyisobutane; perfluoromorpholine derivatives such as 4-trifluoromethyl perfluoromorpholine sold under the name PF 5052® by the company 3M.

The waxes are chosen from carnauba wax, candelilla wax, esparto grass wax, paraffin wax, ozokerites, plant waxes such as olive wax, rice wax, hydrogenated jojoba wax, or the absolute waxes of flowers such as the essential wax of blackcurrant blossom sold by the company Bertin (France), animal waxes, for instance beeswaxes, or modified beeswaxes (cerabellina); other waxes or waxy starting materials that may be used according to the present disclosure are, for example, marine waxes such as the product sold by the company Sophim under the reference M82, and polyethylene waxes or polyolefin waxes in general.

The fatty acids may be saturated or unsaturated and contain from 6 to 30 carbon atoms, for example from 9 to 30 carbon atoms. They may be chosen, for example, from myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, linolenic acid, and isostearic acid.

The esters are chosen from esters of saturated and unsaturated, linear and branched C₁-C₂₆ aliphatic mono- and polyacids and of saturated and unsaturated, linear and branched C₁-C₂₆ aliphatic mono- or polyalcohols, the total carbon number of the esters being greater than or equal to 10.

Among the monoesters, non-limiting mention may be made of dihydroabietyl behenate; octyldodecyl behenate; isocetyl behenate; cetyl lactate; C₁₂-C₁₅ alkyl lactate; isostearyl lactate; lauryl lactate; linoleyl lactate; oleyl lactate; (iso)stearyl octanoate; isocetyl octanoate; octyl octanoate; cetyl octanoate; decyl oleate; isocetyl isostearate; isocetyl laurate; isocetyl stearate; isodecyl octanoate; isodecyl oleate; isononyl isononanoate; isostearyl palmitate; methylacetyl ricinoleate; myristyl stearate; octyl isononanoate; 2-ethylhexyl isononate; octyl palmitate; octyl pelargonate; octyl stearate; octyldodecyl erucate; oleyl erucate; ethyl and isopropyl palmitates, 2-ethylhexyl palmitate, 2-octyidecyl palmitate, alkyl myristates such as isopropyl, butyl, cetyl, 2-octyldodecyl, myristyl, or stearyl myristate, hexyl stearate, butyl stearate, isobutyl stearate; dioctyl malate, hexyl laurate, and 2-hexyldecyl laurate.

For example, esters chosen from esters of C₄-C₂₂ dicarboxylic and tricarboxylic acids, esters of C₁-C₂₂ alcohols, esters of mono-, di- and tricarboxylic acids, and esters of C₂-C₂₆ di-, tri-, tetra-, and pentahydroxy alcohols may also be used.

Non-limiting mention of the following may also be made: diethyl sebacate; diisopropyl sebacate; diisopropyl adipate; di-n-propyl adipate; dioctyl adipate; diisostearyl adipate; dioctyl maleate; glyceryl undecylenate; octyldodecyl stearoyl stearate; pentaerythrityl monoricinoleate; pentaerythrityl tetraisononanoate; pentaerythrityl tetrapelargonate; pentaerythrityl tetraisostearate; pentaerythrityl tetraoctanoate; propylene glycol dicaprylate; propylene glycol dicaprate; tridecyl erucate; triisopropyl citrate; triisostearyl citrate; glyceryl trilactate; glyceryl trioctanoate; trioctyldodecyl citrate; trioleyl citrate; propylene glycol dioctanoate; neopentyl glycol diheptanoate; diethylene glycol diisononanoate; and polyethylene glycol distearates.

Among the esters mentioned above, ethyl, isopropyl, myristyl, cetyl or stearyl palmitate, 2-ethylhexyl palmitate, 2-octyldecyl palmitate, alkyl myristates such as isopropyl, butyl, cetyl, or 2-octyldodecyl myristate, hexyl stearate, butyl stearate, isobutyl stearate; dioctyl malate, hexyl laurate, 2-hexyldecyl laurate, isononyl isononanoate, or cetyl octanoate may be used, for example.

The composition (A) may also comprise as the fatty ester, sugar esters and diesters of C₆-C₃₀ and, for example, C₁₂-C₂₂ fatty acids. In the present disclosure the term “sugar” means oxygen-bearing hydrocarbon-based compounds containing several alcohol functional groups, with or without aldehyde or ketone functional groups, and which contain at least 4 carbon atoms. These sugars may be monosaccharides, oligosaccharides, or polysaccharides.

Non-limiting examples of suitable sugars that may be mentioned include sucrose (or saccharose), glucose, galactose, ribose, fructose, maltose, mannose, arabinose, xylose, lactose, and derivatives thereof, for example alkyl derivatives, such as methyl derivatives, for instance methylglucose.

The sugar esters of fatty acids may be chosen, for example, from esters and mixtures of esters of sugars described previously and of linear and branched, saturated and unsaturated C₆-C₃₀ and, for example, C₁₂-C₂₂ fatty acids. If they are unsaturated, these compounds may comprise one to three conjugated or nonconjugated carbon-carbon double bonds.

The esters may, for example, also be chosen from mono-, di-, tri-, tetraesters, polyesters, and mixtures thereof.

These esters may be chosen, for example, from oleates, laurates, palmitates, myristates, behenates, cocoates, stearates, linoleates, linolenates, caprates, arachidonates, or mixtures thereof such as, for example, oleo-palmitate, oleo-stearate, and palmito-stearate mixed esters.

In at least one embodiment of the present disclosure, monoesters or diesters or, for example, sucrose, glucose, or methylglucose mono- or dioleates, stearates, behenates, oleopalmitates, linoleates, linolenates, and oleostearates may be used.

A non-limiting example that may be mentioned is the product sold under the name GLUCATE® DO by the company Amerchol, which is a methylglucose dioleate.

Non-limiting examples of esters or mixtures of esters of sugar and of fatty acid that may also be mentioned include:

the products sold under the names F160, F140, F110, F90, F70, and SL40 by the company Crodesta, respectively denoting sucrose palmitostearates formed from 73% monoester and 27% diester and triester, from 61% monoester and 39% diester, triester, and tetraester, from 52% monoester and 48% diester, triester, and tetraester, from 45% monoester and 55% diester, triester, and tetraester, from 39% monoester and 61% diester, triester, and tetraester, and sucrose monolaurate;

the products sold under the name RYOTO SUGAR ESTERS, for example referenced B370 and corresponding to sucrose behenate formed from 20% monoester and 80% di-triester-polyester;

the sucrose mono-dipalmito-stearate sold by the company Goldschmidt under the name TEGOSOFT® PSE.

The silicones that may be used in the cosmetic compositions of the present disclosure are volatile or nonvolatile, cyclic, linear, or branched silicones, which are unmodified or modified with organic functional groups, having a viscosity ranging from 5×10⁻⁶ to 2.5 m²/s at 25° C., and, for example, 1×10⁻⁵ to 1 m²/s.

The silicones that may be used in accordance with the present disclosure may be in the form of oils, waxes, resins, or gums.

For example, the silicone may be chosen from polydialkylsiloxanes, for example polydimethylsiloxanes (PDMS), and organomodified polysiloxanes comprising at least one functional group chosen from poly(oxyalkylene) groups, amino groups, and alkoxy groups.

The organopolysiloxanes are defined in greater detail in Walter Noll's “Chemistry and Technology of Silicones” (1968) Academic Press. They can be volatile or nonvolatile,

When they are volatile, the silicones are, for example, chosen from those having a boiling point ranging from 60° C. to 260° C., such as:

(i) cyclic polydialkylsiloxanes containing from 3 to 7 and, for example, 4 to 5 silicon atoms. These are, for example, octamethylcyclotetrasiloxane sold under the name VOLATILE SILICONE® 7207 by Union Carbide or SILBIONE® 70045 V 2 by Rhodia, decamethylcyclopentasiloxane sold under the name VOLATILE SILICONE® 7158 by Union Carbide, and SILBIONE® 70045 V 5 by Rhodia, and mixtures thereof.

Non-limiting mention may also be made of cyclocopolymers of the dimethylsiloxane/methylalkylsiloxane type, such as VOLATILE SILICONE® FZ 3109 sold by the company Union Carbide, of formula:

Non-limiting mention may also be made of (i) mixtures of cyclic polydialkylsiloxanes with organosilicon compounds, such as the mixture of octamethylcyclotetrasiloxane and tetratrimethylsilylpentaerythritol (50/50) and the mixture of octamethylcyclotetrasiloxane and oxy-1,1′-bis(2,2,2′,2′,3,3′-hexatrimethylsilyloxy)neopentane;

(ii) linear volatile polydialkylsiloxanes containing 2 to 9 silicon atoms and having a viscosity of less than or equal to 5×10⁻⁶ m²/s at 25° C. A non-limiting example is decamethyltetrasiloxane sold for example, under the name SH 200 by the company Toray Silicone. Silicones belonging to this category are also described in the article published in Cosmetics and Toiletries, Vol. 91, Jan. 76, pp. 27-32, Todd & Byers “Volatile Silicone Fluids for Cosmetics”.

Nonvolatile polydialkylsiloxanes, polydialkylsiloxane gums and resins, polyorganosiloxanes modified with organofunctional groups described above, and mixtures thereof, are, for example, also used.

These silicones are, for example, chosen from polydialkylsiloxanes, among which non-limiting mention may be made of polydimethylsiloxanes containing trimethylsilyl end groups. The viscosity of the silicones is measured, for example, at 25° C. according to ASTM standard 445 Appendix C.

Among these polydialkylsiloxanes, non-limiting mention may be made of the following commercial products:

the SILBIONE® oils of the 47 and 70047 series or the MIRASIL® oils sold by Rhodia, for instance the oil 70047 V 500000;

the oils of the MIRASIL® series sold by the company Rhodia;

the oils of the 200 series from the company Dow Corning, such as DC200 with a viscosity of 60,000 mm²/s;

the VISCASIL® oils from General Electric and certain oils of the SF series (SF 96, SF 18) from General Electric.

Non-limiting mention may also be made of polydimethylsiloxanes containing dimethylsilanol end groups known under the name dimethiconol (CTFA), such as the oils of the 48 series from the company Rhodia.

In this category of polydialkylsiloxanes, non-limiting mention may also be made of the products sold under the names ABIL WAX® 9800 and 9801 by the company Goldschmidt, which are poly(C₁-C₂₀)dialkylsiloxanes.

The silicone gums that can be used in accordance with the present disclosure are, for example, polydialkylsiloxanes and, for example, polydimethylsiloxanes with high number-average molecular masses ranging from 200,000 to 1,000,000, used alone or as a mixture in a solvent. This solvent can be chosen from volatile silicones, polydimethylsiloxane (PDMS) oils, polyphenylmethylsiloxane (PPMS) oils, isoparaffins, polyisobutylenes, methylene chloride, pentane, dodecane, tridecane, or mixtures thereof.

Products that can be used in accordance with the present disclosure include mixtures such as:

mixtures formed from a polydimethylsiloxane hydroxylated at the chain end, or dimethiconol (CTFA) and from a cyclic polydimethylsiloxane also known as cyclomethicone (CTFA), such as the product Q2 1401 sold by the company Dow Corning;

mixtures formed from a polydimethylsiloxane gum with a cyclic silicone, such as the product SF 1214 SILICONE FLUID from the company General Electric; this product is an SF 30 gum corresponding to a dimethicone, having a number-average molecular weight of 500,000, dissolved in the oil SF 1202 SILICONE FLUID corresponding to decamethylcyclopentasiloxane;

mixtures of two PDMS's with different viscosities, for example a PDMS gum and a PDMS oil, such as the product SF 1236 from the company General Electric. The product SF 1236 is a mixture of an SE 30 gum defined above, having a viscosity of 20 m²/s, and an SF 96 oil, with a viscosity of 5×10⁻⁶ m²/s. This product, for example, contains 15% SE 30 gum and 85% SF 96 oil.

The organopolysiloxane resins that can be used in accordance with the present disclosure are, for example, crosslinked siloxane systems containing the units:

(R)₂SiO_(2/2), (R)₃SiO_(1/2), RSiO_(3/2), and SiO_(4/2)

in which R is chosen from a hydrocarbon-based group containing 1 to 16 carbon atoms. For example, R may denote a C₁-C₄ lower alkyl radical, such as a methyl.

Among these resins, non-limiting mention may be made of the product sold under the name DOW CORNING 593 or those sold under the names SILICONE FLUID SS 4230 and SS 4267 by the company General Electric, which are silicones of dimethyl/trimethyl siloxane structure.

Non-limiting mention may also be made of the trimethyl siloxysilicate type resins sold, for example, under the names X22-4914, X21-5034, and X21-5037 by the company Shin-Etsu.

The organomodified silicones that can be used in accordance with the present disclosure are silicones as defined above and comprising in their structure at least one organofunctional group attached via a hydrocarbon-based radical.

Besides the silicones described above, the organomodified silicones may be polydiarylsiloxanes, for example polydiphenylsiloxanes, and polyalkylarylsiloxanes functionalized with the organofunctional groups mentioned previously.

The polyalkylarylsiloxanes may be chosen, for example, from linear and/or branched polydimethyl/methylphenylsiloxanes and polydimethyl/diphenylsiloxanes with a viscosity ranging from 1×10⁻⁵ to 5×10⁻² m²/s at 25° C.

Among these polyalkylarylsiloxanes, non-limiting examples that may be mentioned include the products sold under the following names:

the SILBIONE® oils of the 70641 series from Rhodia;

the oils of the RHODOURSIL® 70633 and 763 series from Rhodia;

the oil DOW CORNING 556 COSMETIC GRADE FLUID from Dow Corning;

the silicones of the PK series from Bayer, such as the product PK20;

the silicones of the PN and PH series from Bayer, such as the products PN1000 and PH1000;

certain oils of the SF series from General Electric, such as SF 1023, SF 1154, SF 1250, and SF 1265.

Among the organomodified silicones, non-limiting mention may be made of polyorganosiloxanes comprising:

polyethyleneoxy and/or polypropyleneoxy groups optionally comprising C₆-C₂₄ alkyl groups, such as the products known as dimethicone copolyol sold by the company Dow Corning under the name DC 1248 or the oils SILWET® L 722, L 7500, L 77, and L 711 by the company Union Carbide, and the (C₁₂)alkylmethicone copolyol sold by the company Dow Corning under the name Q2 5200;

substituted or unsubstituted amine groups, such as the products sold under the name GP 4 SILICONE FLUID and GP 7100 by the company Genesee, or the products sold under the names Q2 8220 and Dow Corning 929 or 939 by the company Dow Corning. The substituted amine groups may be, for example, C₁-C₄ aminoalkyl groups;

alkoxylated groups such as the product sold under the name SILICONE COPOLYMER F-755 by SWS Silicones, and ABIL WAX® 2428, 2434, and 2440 by the company Goldschmidt.

For example, the at least one fatty substance may be a compound that is liquid at a temperature of 25° C. and at atmospheric pressure.

For example, the at least one fatty substance may be chosen from liquid petroleum jelly, polydecenes, and liquid esters.

The at least one anhydrous cosmetic composition (A) has at least one fatty substance present in an amount ranging, for example, from 10% to 99% by weight, for further example, ranging from 20% to 90% by weight, such as from 25% to 80% by weight relative to the weight of the anhydrous composition (A).

The at least one anhydrous cosmetic composition (A) also comprises at least one surfactant.

For example, the at least one surfactants can be chosen from nonionic surfactants and anionic surfactants.

The anionic surfactants are, for example, chosen from the salts (such as alkali metal salts, for example sodium salts, ammonium salts, amine salts, amino alcohol salts, or alkaline-earth metal salts such as magnesium salts) of the following compounds: alkyl sulfates, alkyl ether sulfates, alkylamido ether sulfates, alkylaryl polyether sulfates, monoglyceride sulfates;

alkylsulfonates, alkylamidesulfonates, alkylarylsulfonates, α-olefin sulfonates, paraffin sulfonates;

alkyl phosphates, alkyl ether phosphates;

alkylsulfosuccinates, alkyl ether sulfosuccinates, alkylamidesulfosuccinates; alkylsulfosuccinates;

alkylsulfoacetates;

acylsarcosinates; acylisethionates and N-acyltaurates;

salts of fatty acids such as oleic acid, ricinoleic acid, palmitic acid, stearic acid, coconut oil acid, or hydrogenated coconut oil acid;

alkyl-D-galactoside uronic acid salts;

acyllactylates;

salts of polyoxyalkylenated alkyl ether carboxylic acids, of polyoxyalkylenated alkylaryl ether carboxylic acids or of polyoxyalkylenated alkylamido ether carboxylic acids, for example those containing from 2 to 50 ethylene oxide groups;

and mixtures thereof.

It should be noted that the alkyl or acyl radical of these various compounds contains, for example, from 6 to 24 carbon atoms and, for example, from 8 to 24 carbon atoms, and the aryl radical, for example, denotes a phenyl or benzyl group.

The nonionic surfactants are, for example, chosen from monooxyalkylenated or polyoxyalkylenated, monoglycerolated or polyglycerolated non ionic surfactants. The oxyalkylene units are, for example, oxyethylene or oxypropylene units, or a combination thereof, such as oxyethylene units.

Non-limiting examples of oxyalkylenated nonionic surfactants that may be mentioned include:

oxyalkylenated (C₈-C₂₄)alkylphenols,

saturated or unsaturated, linear or branched, oxyalkylenated C₈-C₃₀ alcohols,

saturated or unsaturated, linear or branched, oxyalkylenated C₈-C₃₀ amides,

saturated or unsaturated, linear or branched, oxyalkylenated C₈-C₃₀ amines,

esters of saturated or unsaturated, linear or branched, C₈-C₃₀ acids and of polyethylene glycols,

polyoxyethylenated esters of saturated or unsaturated, linear or branched, C₈-C₃₀ acids and of sorbitol,

saturated or unsaturated, oxyethylenated plant oils,

condensates of ethylene oxide and/or of propylene oxide, alone or as mixtures.

The at least one surfactant contains a number of moles of ethylene oxide and/or of propylene oxide ranging from 1 to 50 and, for example, from 2 to 30. For example, the nonionic surfactants do not comprise any oxypropylene units.

According to at least one aspect of the present disclosure, the oxyalkylenated nonionic surfactants are chosen from oxyethylenated C₈-C₃₀ alcohols and oxyethylenated C₈-C₃₀ amines.

As non-limiting examples of monoglycerolated or polyglycerolated nonionic surfactants, monoglycerolated or polyglycerolated C₈-C₄₀ alcohols are, for example, used.

For example, the monoglycerolated or polyglycerolated C₈-C₄₀ alcohols can be chosen from those of formula:

RO—[CH₂—CH(CH₂OH)—O]_(m)—H

in which R is chosen from a linear or branched C₈-C₄₀ and, for example, C₈-C₃₀ alkyl or alkenyl radical, and m is a number ranging from 1 to 30 and, for example from 1 to 10.

As examples of compounds that are suitable in the context of the present disclosure, non-limiting mention may be made of lauryl alcohol containing 4 mol of glycerol (INCI name: Polyglyceryl-4 Lauryl Ether), lauryl alcohol containing 1.5 mol of glycerol, oleyl alcohol containing 4 mol of glycerol (INCI name: Polyglyceryl-4 Oleyl Ether), oleyl alcohol containing 2 mol of glycerol (INCI name: Polyglyceryl-2 Oleyl Ether), cetearyl alcohol containing 2 mol of glycerol, cetearyl alcohol containing 6 mol of glycerol, oleocetyl alcohol containing 6 mol of glycerol, and octadecanol containing 6 mol of glycerol.

The alcohol may represent a mixture of alcohols in the same way that the value of m represents a statistical value, which means that, in a commercial product, several species of polyglycerolated fatty alcohol may coexist in the form of a mixture.

Among the monoglycerolated or polyglycerolated alcohols, for example, the C₈/C₁₀ alcohol containing 1 mol of glycerol, the C₁₀/C₁₂ alcohol containing 1 mol of glycerol, and the C₁₂ alcohol containing 1.5 mol of glycerol may be mentioned.

For example, in at least one embodiment the at least one surfactant present in the at least one anhydrous composition (A) is a nonionic surfactant.

The at least one surfactant is present in the at least one anhydrous composition (A) in an amount ranging from, for example, 0.1% to 50% by weight, such as from 0.5% to 30% by weight relative to the weight of the at least one anhydrous composition (A).

The at least one anhydrous composition (A) may also contain various adjuvants conventionally used in hair dye compositions, such as anionic, cationic, nonionic, amphoteric, or zwitterionic polymers, or mixtures thereof; mineral thickeners, and fillers such as clays or talc; organic thickeners with, for example, anionic, cationic, nonionic, and amphoteric polymeric associative thickeners; antioxidants; penetrants; sequestrants; fragrances; dispersants; film-forming agents; ceramides; preserving agents; and opacifiers.

The above adjuvants are generally present in an amount for each of them ranging, for example, from 0.01% to 20% by weight relative to the weight of the at least one composition (A).

According to at least one aspect of the present disclosure, the at least one anhydrous composition (A) comprises at least one silica, for example of hydrophobic nature, for instance fumed silicas.

When present, the at least one silica may be present in an amount ranging, for example, from 1% to 30% by weight relative to the weight of the at least one anhydrous composition (A).

For example, the composition (A) may be in the form of a gel or a cream.

As indicated previously, the process according to the present disclosure is performed in the presence of at least one composition (B) comprising at least one oxidizing agent.

For example, the at least one oxidizing agent can be chosen from hydrogen peroxide, urea peroxide, alkali metal bromates or ferricyanides, and peroxygenated salts, for instance alkali metal or alkaline-earth metal persulfates, perborates and percarbonates, peracids, and precursors thereof.

The at least one oxidizing agent may be, for example, hydrogen peroxide, such as an aqueous solution (aqueous hydrogen peroxide solution), the titre of which may range, for example, from 1 to 40 volumes, such as from 5 to 40 volumes.

As a function of the desired degree of lightening, the at least one composition (B) may also comprise at least one oxidizing agent chosen, for example, from peroxygenated salts.

In at least one embodiment, the at least one oxidizing agent is not chosen from peroxygenated salts, peracids and precursors thereof.

The at least one composition (B) may be aqueous or nonaqueous. The term “aqueous composition” means a composition comprising more than 5% by weight of water, for example more than 10% by weight of water, such as more than 20% by weight of water.

For example, in at least one embodiment the at least one composition (B) is an aqueous composition.

The composition (B) may also comprise at least one organic solvent.

Non-limiting examples of organic solvents that may be mentioned include linear or branched C₂-C₄ alkanols, such as ethanol and isopropanol; glycerol; polyols and polyol ethers, for instance 2-butoxyethanol, propylene glycol, dipropylene glycol, propylene glycol monomethyl ether, diethylene glycol monomethyl ether, and monoethyl ether, and also aromatic alcohols, for instance benzyl alcohol or phenoxyethanol, and mixtures thereof.

When present, the at least one the solvent may be present in an amount ranging, for example, from 1% to 40% by weight and, further for example, from 5% to 30% by weight relative to the weight of the at least one composition (B).

The at least one composition (B) may comprise at least one acidifying agent.

Non-limiting examples of acidifying agents include mineral or organic acids, for instance hydrochloric acid, orthophosphoric acid, sulfuric acid, carboxylic acids, for instance acetic acid, tartaric acid, citric acid, or lactic acid, and sulfonic acids.

For example, the pH of the at least one composition (B), when it is aqueous, may be less than 7.

The at least one composition (B) may further comprise other ingredients conventionally used in the field, such as those detailed previously in the context of the at least one anhydrous composition (A).

Furthermore, the at least one composition (B) may be in various forms, for instance a solution, an emulsion, or a gel.

The process according to the present disclosure is performed in the presence of at least one composition (C) comprising at least one dye chosen from oxidation dyes and direct dyes.

The oxidation dyes are generally chosen from at least one oxidation base optionally combined with at least one coupler.

The at least one oxidation base can be chosen, for example, from para-phenylenediamines, bis(phenyl)alkylenediamines, para-aminophenols, ortho-aminophenols, heterocyclic bases, and the addition salts thereof.

Among the para-phenylenediamines of which non-limiting mention may be made are, for example, para-phenylenediamine, para-tolylenediamine, 2-chloro-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, 2,6-dimethyl-para-phenylene-diamine, 2,6-diethyl-para-phenylenediamine, 2,5-dimethyl-para-phenylenediamine, N,N-dimethyl-para-phenylenediamine, N,N-diethyl-para-phenylenediamine, N,N-dipropyl-para-phenylenediamine, 4-amino-N,N-diethyl-3-methylaniline, N,N-bis(β-hydroxyethyl)-para-phenylenediamine, 4-N,N-bis(β-hydroxyethyl)amino-2-methylaniline, 4-N,N-bis(β-hydroxyethyl)amino-2-chloroaniline, 2-β-hydroxyethyl-para-phenylenediamine, 2-fluoro-para-phenylenediamine, 2-isopropyl-para-phenylenediamine, N-(β-hydroxypropyl)-para-phenylenediamine, 2-hydroxymethyl-para-phenylenediamine, N,N-dimethyl-3-methyl-para-phenylenediamine, N-ethyl-N-(β-hydroxyethyl)-para-phenylenediamine, N-(β,γ-dihydroxy-propyl)-para-phenylenediamine, N-(4′-aminophenyl)-para-phenylenediamine, N-phenyl-para-phenylenediamine, 2-β-hydroxyethyloxy-para-phenylenediamine, 2-β-acetylamino-ethyloxy-para-phenylenediamine, N-(β-methoxyethyl)-para-phenylenediamine, 4-aminophenylpyrrolidine, 2-thienyl-para-phenylenediamine, 2-β-hydroxyethylamino-5-aminotoluene, 3-hydroxy-1-(4′-aminophenyl)pyrrolidine, and the acid addition salts thereof.

Among the para-phenylenediamines mentioned above, para-phenylenediamine, para-tolylenediamine, 2-isopropyl-para-phenylenediamine, 2-β-hydroxyethyl-para-phenylenediamine, 2-β-hydroxyethyloxy-para-phenylenediamine, 2,6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, N,N-bis(β-hydroxyethyl)-para-phenylenediamine, 2-chloro-para-phenylenediamine, 2-β-acetylaminoethyloxy-para-phenylenediamine, and the acid addition salts thereof may be mentioned.

Among the bis(phenyl)alkylenediamines of which non-limiting mention may be made are, for example, N,N′-bis(β-hydroxyethyl)-N,N′-bis(4′-aminophenyl)-1,3-diaminopropanol, N,N′-bis(β-hydroxyethyl)-N,N′-bis(4′-aminophenyl)ethylenediamine, N,N′-bis(4-aminophenyl)tetramethylenediamine, N,N′-bis(β-hydroxyethyl)-N,N′-bis(4-aminophenyl)tetramethylenediamine, N,N′-bis(4-methylaminophenyl)tetramethylenediamine, N,N′-bis(ethyl)-N,N′-bis(4′-amino-3′-methylphenyl)ethylenediamine, 1,8-bis(2,5-diaminophenoxy)-3,6-dioxaoctane, and the addition salts thereof.

Among the para-aminophenols of which non-limiting mention may be made are, for example, para-aminophenol, 4-amino-3-methylphenol, 4-amino-3-fluorophenol, 4-amino-3-chlorophenol, 4-amino-3-hydroxymethylphenol, 4-amino-2-methylphenol, 4-amino-2-hydroxymethylphenol, 4-amino-2-methoxymethylphenol, 4-amino-2-aminomethylphenol, 4-amino-2-(β-hydroxyethylaminomethyl)phenol, 4-amino-2-fluorophenol, and the acid addition salts thereof.

Among the ortho-aminophenols of which non-limiting mention may be made are, for example, 2-aminophenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol, 5-acetamido-2-aminophenol, and the addition salts thereof.

Among the heterocyclic bases of which non-limiting mention may be made are, for example, pyridine derivatives, pyrimidine derivatives, and pyrazole derivatives.

Among the pyridine derivatives of which non-limiting mention may be made are the compounds described, for example, in Patent Publication Nos. GB 1 026 978 and GB 1 153 196, for instance 2,5-diaminopyridine, 2-(4-methoxyphenyl)amino-3-aminopyridine, 3,4-diaminopyridine, and the addition salts thereof.

Other pyridine oxidation bases that may be used in the present disclosure are, for example, the 3-aminopyrazolo[1,5-a]pyridine oxidation bases or addition salts thereof described, for example, in French Patent Application Publication No. FR 2 801 308. Non-limiting examples that may be mentioned include pyrazolo[1,5-a]pyrid-3-ylamine, 2-acetylaminopyrazolo[1,5-a]pyrid-3-ylamine, 2-morpholin-4-ylpyrazolo[1,5-a]pyrid-3-ylamine, 3-aminopyrazolo[1,5-a]pyridine-2-carboxylic acid, 2-methoxypyrazolo[1,5-a]pyrid-3-ylamine, (3-aminopyrazolo[1,5-a]pyrid-7-yl)methanol, 2-(3-aminopyrazolo[1,5-a]pyrid-5-yl)ethanol, 2-(3-aminopyrazolo[1,5-a]pyrid-7-yl)ethanol, (3-aminopyrazolo[1,5-a]pyrid-2-yl)methanol, 3,6-diaminopyrazolo[1,5-a]pyridine, 3,4-diaminopyrazolo[1,5-a]pyridine, pyrazolo[1,5-a]pyridine-3,7-diamine, 7-morpholin-4-ylpyrazolo[1,5-a]pyrid-3-ylamine, pyrazolo[1,5-a]pyridine-3,5-diamine, 5-morpholin-4-ylpyrazolo[1,5-a]pyrid-3-ylamine, 2-[(3-aminopyrazolo[1,5-a]pyrid-5-yl)(2-hydroxyethyl)amino]ethanol, 2-[(3-aminopyrazolo[1,5-a]pyrid-7-yl)(2-hydroxyethyl)amino]ethanol, 3-aminopyrazolo[1,5-a]pyridin-5-ol, 3-amino-pyrazolo[1,5-a]pyridin-4-ol, 3-aminopyrazolo[1,5-a]pyridin-6-ol and 3-aminopyrazolo[1,5-a]pyridin-7-ol, and the addition salts thereof.

Among the pyrimidine derivatives of which non-limiting mention may be made are the compounds described, for example, in Patent Publication Nos. DE 2 359 399; JP 88-169 571; JP 05-63124; EP 0 770 375, or International Patent Application Publication No. WO 96/15765, for instance 2,4,5,6-tetraminopyrimidine, 4-hydroxy-2,5,6-triamino-pyrimidine, 2-hydroxy-4,5,6-triaminopyrimidine, 2,4-dihydroxy-5,6-diaminopyrimidine, 2,5,6-triaminopyrimidine, and the addition salts thereof, and the tautomeric forms thereof, when a tautomeric equilibrium exists.

Among the pyrazole derivatives of which non-limiting mention may be made are the compounds described, for example, in Patent Publication Nos. DE 3 843 892, DE 4 133 957, WO 94/08969, WO 94/08970, FR-A-2 733 749, and DE 195 43 988, for instance 4,5-diamino-1-methylpyrazole, 4,5-diamino-1-(β-hydroxyethyl)pyrazole, 3,4-diaminopyrazole, 4,5-diamino-1-(4′-chlorobenzyl)pyrazole, 4,5-diamino-1,3-dimethyl-pyrazole, 4,5-diamino-3-methyl-1-phenylpyrazole, 4,5-diamino-1-methyl-3-phenylpyrazole, 4-amino-1,3-dimethyl-5-hydrazinopyrazole, 1-benzyl-4,5-diamino-3-methylpyrazole, 4,5-diamino-3-tert-butyl-1-methylpyrazole, 4,5-diamino-1-tert-butyl-3-methylpyrazole, 4,5-diamino-1-(β-hydroxyethyl)-3-methylpyrazole, 4,5-diamino-1-ethyl-3-methylpyrazole, 4,5-diamino-1-ethyl-3-(4′-methoxyphenyl)pyrazole, 4,5-diamino-1-ethyl-3-hydroxymethylpyrazole, 4,5-diamino-3-hydroxymethyl-1-methylpyrazole, 4,5-diamino-3-hydroxymethyl-1-isopropylpyrazole, 4,5-diamino-3-methyl-1-isopropylpyrazole, 4-amino-5-(2′-aminoethyl)-amino-1,3-dimethylpyrazole, 3,4,5-triaminopyrazole, 1-methyl-3,4,5-triaminopyrazole, 3,5-diamino-1-methyl-4-methylaminopyrazole, 3,5-diamino-4-(β-hydroxyethyl)amino-1-methylpyrazole, and the addition salts thereof. 4,5-Diamino-1-(β-methoxyethyl)pyrazole may also be used.

A heterocyclic base that may also be used is 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one, or a salt thereof.

The composition (C) according to the present disclosure may optionally comprise at least one coupler chosen from those conventionally used in the dyeing of keratin fibers.

Among these couplers, non-limiting mention may be made, for example, of meta-phenylenediamines, meta-aminophenols, meta-diphenols, naphthalene-based couplers, heterocyclic couplers, and also the addition salts thereof.

Non-limiting mention may be made, for example, of 1,3-dihydroxybenzene, 1,3-dihydroxy-2-methylbenzene, 4-chloro-1,3-dihydroxybenzene, 2,4-diamino-1-(β-hydroxyethyloxy)benzene, 2-amino-4-(β-hydroxyethylamino) 1-methoxybenzene, 1,3-diaminobenzene, 1,3-bis(2,4-diaminophenoxy)propane, 3-ureidoaniline, 3-ureido-1-dimethylaminobenzene, sesamol, 1-β-hydroxyethylamino-3,4-methylenedioxybenzene, α-naphthol, 2-methyl-1-naphthol, 6-hydroxyindole, 4-hydroxyindole, 4-hydroxy-N-methyl-indole, 2-amino-3-hydroxypyridine, 6-hydroxybenzomorpholine, 3,5-diamino-2,6-dimethoxypyridine, 1-N-(β-hydroxyethyl)amino-3,4-methylenedioxybenzene, 2,6-bis(β-hydroxyethylamino)toluene, 6-hydroxyindoline, 2,6-dihydroxy-4-methylpyridine, 1-H-3-methylpyrazo-5-one, 1-phenyl-3-methylpyrazol-5-one, 2,6-dimethylpyrazolo[1,5-b]-1,2,4-triazole, 2,6-dimethyl[3,2-c]-1,2,4-triazole, 6-methylpyrazolo[1,5-a]benzimidazole, the acid addition salts thereof, and mixtures thereof.

For example, the addition salts of the at least one oxidation base and the at least one coupler that may be used in the context of the present disclosure are chosen, for example, from the acid addition salts such as the hydrochlorides, hydrobromides, sulfates, citrates, succinates, tartrates, lactates, tosylates, benzenesulfonates, phosphates, and acetates.

The at least one oxidation base can be present in an amount ranging from, for example, 0.0001% to 10% by weight relative to the total weight of the composition, and, further for example, from 0.005% to 5% by weight relative to the total weight of the composition.

The at least one coupler, when present, may be present in an amount, for example, ranging from 0.0001% to 10% by weight relative to the total weight of the composition, and, further for example, from 0.005% to 5% by weight relative to the total weight of the composition.

As regards the direct dyes, these dyes may be chosen, for example, from ionic and nonionic species, for example cationic or nonionic species.

Non-limiting examples of direct dyes that may be mentioned include azo; methine; carbonyl; azine; nitro (hetero)aryl; tri(hetero)arylmethane; porphyrin; phthalocyanin direct dyes, and natural direct dyes, alone or as mixtures.

For example, the azo dyes may comprise an —N═N— functional group, the two nitrogen atoms of which are not simultaneously engaged in a ring. However, one of the two nitrogen atoms of the sequence —N═N— may be engaged in a ring as well.

The dyes of the methine family are, for example, compounds comprising at least one sequence chosen from >C═C<and —N═C<, the two atoms of which are not simultaneously engaged in a ring. However, one of the nitrogen or carbon atoms of the sequences may be engaged in a ring as well. For example, the dyes of this family are derived from compounds of the type such as methines, azomethines, mono- and diarylmethanes, indoamines (or diphenylamines), indophenols, indoanilines, carbocyanins, azacarbocyanins and isomers thereof, diazacarbocyanins and isomers thereof, tetraazacarbocyanins, and hemicyanins.

As regards the dyes of the carbonyl family, non-limiting examples that may be include dyes chosen from acridone, benzoquinone, anthraquinone, naphthoquinone, benzanthrone, anthranthrone, pyranthrone, pyrazolanthrone, pyrimidinoanthrone, flavanthrone, idanthrone, flavone, (iso)violanthrone, isoindolinone, benzimidazolone, isoquinolinone, anthrapyridone, pyrazoloquinazolone, perinone, quinacridone, quinophthalone, indigoid, thioindigo, naphthalimide, anthrapyrimidine, diketopyrrolopyrrole, and coumarin.

As regards the dyes of the cyclic azine family, non-limiting mention may be made, for example, of azine, xanthene, thioxanthene, fluorindine, acridine, (di)oxazine, (di)thiazine, and pyronin.

The nitro (hetero)aromatic dyes may be, for example, nitrobenzene or nitropyridine direct dyes.

As regards the dyes of porphyrin or phthalocyanin type, it is possible to use cationic or noncationic compounds, optionally comprising at least one metal or metal ion, for instance alkali metals, alkaline-earth metals, zinc, and silicon.

Non-limiting examples of direct dyes that may be mentioned include nitrobenzene dyes; azo direct dyes; azomethine direct dyes; methine direct dyes; azacarbocyanin direct dyes, for instance tetraazacarbocyanins (tetraazapentamethines); quinone and, for example, anthraquinone, naphthoquinone, or benzoquinone direct dyes; azine; xanthene; triarylmethane; indoamine; indigoid; phthalocyanin direct dyes, porphyrins, and natural direct dyes, alone or as mixtures.

These dyes may be monochromophoric dyes (i.e. comprising only one dye group) or polychromophoric, for example di- or trichromophoric; the chromophores possibly being identical or different, and from the same chemical family or otherwise. It should be noted that a polychromophoric dye comprises several radicals each derived from a molecule that absorbs in the visible region ranging from 400 to 800 nm. Furthermore, this absorbance of the dye generally does not involve any prior oxidation thereof, or combination with any other chemical species.

In the case of polychromophoric dyes, the chromophores are connected together via at least one linker, which may be cationic or noncationic.

For example, the linker can be a linear, branched or cyclic C₁-C₂₀ alkyl chain, optionally interrupted with at least one heteroatom (such as nitrogen or oxygen) and/or with at least one group comprising such an atom (CO, SO₂), optionally interrupted with at least one heterocycle that may or may not be fused to a phenyl nucleus and comprising at least one quaternized nitrogen atom engaged in the ring and optionally at least one other heteroatom (such as oxygen, nitrogen, or sulfur), optionally interrupted with at least one substituted or unsubstituted phenyl or naphthyl group, optionally at least one quaternary ammonium group substituted with two optionally substituted C₁-C₁₅ alkyl groups; the linker not comprising any nitro, nitroso, or peroxy groups.

If the heterocycles or aromatic nuclei are substituted, they are substituted, for example, with at least one C₁-C₈ alkyl radical optionally substituted with a hydroxyl, C₁-C₂ alkoxy, C₂-C₄ hydroxyalkoxy, acetylamino, or amino group substituted with one or two C₁-C₄ alkyl radicals, optionally bearing at least one hydroxyl group, or the two radicals possibly forming, with the nitrogen atom to which they are attached, a 5- or 6-membered heterocycle optionally comprising another heteroatom identical to or different than nitrogen; a halogen atom; a hydroxyl group; a C₁-C₂ alkoxy radical; a C₂-C₄ hydroxyalkoxy radical; an amino radical; or an amino radical substituted with one or two identical or different C₁-C₄ alkyl radicals optionally bearing at least one hydroxyl group.

Among the benzenic direct dyes that may be used according to the present disclosure, mention may be made in a non-limiting manner of the following compounds:

-   1,4-diamino-2-nitrobenzene, -   1-amino-2-nitro-4-β-hydroxyethylaminobenzene, -   1-amino-2-nitro-4-bis(β-hydroxyethyl)aminobenzene, -   1,4-bis(β-hydroxyethylamino)-2-nitrobenzene, -   1-β-hydroxyethylamino-2-nitro-4-bis(β-hydroxyethylamino)benzene, -   1-β-hydroxyethylamino-2-nitro-4-aminobenzene, -   1-β-hydroxyethylamino-2-nitro-4-(ethyl)(β-hydroxyethyl)aminobenzene, -   1-amino-3-methyl-4-β-hydroxyethylamino-6-nitrobenzene, -   1-amino-2-nitro-4-β-hydroxyethylamino-5-chlorobenzene, -   1,2-diamino-4-nitrobenzene, -   1-amino-2-β-hydroxyethylamino-5-nitrobenzene, -   1,2-bis(β-hydroxyethylamino)-4-nitrobenzene, -   1-amino-2-tris(hydroxymethyl)methylamino-5-nitrobenzene, -   1-hydroxy-2-amino-5-nitrobenzene, -   1-hydroxy-2-amino-4-nitrobenzene, -   1-hydroxy-3-nitro-4-aminobenzene, -   1-hydroxy-2-amino-4,6-dinitrobenzene, -   1-β-hydroxyethyloxy-2-β-hydroxyethylamino-5-nitrobenzene, -   1-methoxy-2-β-hydroxyethylamino-5-nitrobenzene, -   1-β-hydroxyethyloxy-3-methylamino-4-nitrobenzene, -   1-β,γ-dihydroxypropyloxy-3-methylamino-4-nitrobenzene, -   1-β-hydroxyethylamino-4-β,γ-dihydroxypropyloxy-2-nitrobenzene, -   1-β,γ-dihydroxypropylamino-4-trifluoromethyl-2-nitrobenzene, -   1-β-hydroxyethylamino-4-trifluoromethyl-2-nitrobenzene, -   1-β-hydroxyethylamino-3-methyl-2-nitrobenzene, -   1-β-aminoethylamino-5-methoxy-2-nitrobenzene, -   1-hydroxy-2-chloro-6-ethylamino-4-nitrobenzene, -   1-hydroxy-2-chloro-6-amino-4-nitrobenzene, -   1-hydroxy-6-bis(β-hydroxyethyl)amino-3-nitrobenzene, -   1-β-hydroxyethylamino-2-nitrobenzene, and -   1-hydroxy-4-β-hydroxyethylamino-3-nitrobenzene.

Among the azo, azomethine, methine, and tetraazapentamethine direct dyes that may be used according to the present disclosure, non-limiting mention may be made of the cationic dyes described in Patent Publication Nos. WO 95/15144, WO 95/01772, EP 714 954, FR 2 189 006, FR 2 285 851, FR 2 140 205, EP 1 378 544, and EP 1 674 073.

Thus, non-limiting mention may be made of, for example, the following dyes of formulae (I) to (IV), and, in at least one embodiment of the present disclosure, the dyes of formulae (I) and (III) may be used:

wherein:

D is chosen from a nitrogen atom and —CH groups,

R₁ and R₂, which may be identical or different, are chosen from a hydrogen atom; C₁-C₄ alkyl radicals which may be substituted with a radical chosen from —CN, —OH and —NH₂ radicals, or form, with a carbon atom of the benzene ring, a heterocycle optionally containing an entity chosen from oxygen and nitrogen, which may be substituted with at least one C₁-C₄ alkyl radical; and 4′-aminophenyl radicals,

R₃ and R′₃, which may be identical or different, are chosen from a hydrogen atom, a halogen atom chosen from chlorine, bromine, iodine, and fluorine, and cyano, C₁-C₄ alkyl, C₁-C₄ alkoxy, and acetyloxy radicals,

X⁻ is an anion chosen from chloride, methyl sulfate, and acetate,

A is chosen from structures A1 to A18:

wherein R₄ is a C₁-C₄ alkyl radical which may be substituted with a hydroxyl radical and R₅ is a C₁-C₄ alkoxy radical;

wherein:

R₆ is chosen from a hydrogen atom and a C₁-C₄ alkyl radical,

R₇ is chosen from a hydrogen atom, alkyl radicals which may be substituted with a —CN radical or with an amino group, and a 4′-aminophenyl radical, or forms with R₆ a heterocycle optionally containing an entity chosen from oxygen and nitrogen, which may be substituted with a C₁-C₄ alkyl radical,

R₈ and R₉, which may be identical or different, are chosen from a hydrogen atom, a halogen atom such as bromine, chlorine, iodine, or fluorine, a C₁-C₄ alkyl or C₁-C₄ alkoxy radical, and a —CN radical,

X⁻ is an anion chosen, for example, from chloride, methyl sulfate, and acetate,

B is chosen from structures B1 to B6:

wherein R₁₀ is a C₁-C₄ alkyl radical, R₁₁ and R₁₂, which may be identical or different, are chosen from a hydrogen atom and a C₁-C₄ alkyl radical;

wherein:

R₁₃ is chosen from a hydrogen atom, a C₁-C₄ alkoxy radical, a halogen atom such as bromine, chlorine, iodine, or fluorine, and an amino radical,

R₁₄ is chosen from a hydrogen atom and a C₁-C₄ alkyl radical, or forms, with a carbon atom of the benzene ring, a heterocycle optionally containing oxygen and/or substituted with at least one C₁-C₄ alkyl group,

R₁₅ is chosen from a hydrogen atom and a halogen atom such as bromine, chlorine, iodine, or fluorine,

R₁₆ and R₁₇, which may be identical or different, are chosen from a hydrogen atom and C₁-C₄ alkyl radicals,

D₁ and D₂, which may be identical or different, are chosen from a hydrogen atom and a —CH group,

m=0 or 1,

it being understood that when R₁₃ is an unsubstituted amino group, then D₁ and D₂ simultaneously represent a —CH group and m=0,

X⁻ is an anion chosen, for example, from chloride, methyl sulfate, and acetate,

E is chosen from structures E1 to E8 below:

in which R′ is a C₁-C₄ alkyl radical;

when m=0 and D₁ is a nitrogen atom, then E may also be a group of structure E9 below:

wherein R′ is a C₁-C₄ alkyl radical.

G-N═N-J  (IV)

wherein:

G is a chosen from the structures G₁ to G₃:

wherein:

R₁₈ is chosen from a C₁-C₄ alkyl radical, a phenyl radical which may be substituted with a C₁-C₄ alkyl radical, and a halogen atom chosen from chlorine, bromine, iodine, and fluorine;

R₁₉ is chosen from a C₁-C₄ alkyl radical and a phenyl radical;

R₂₀ and R₂₁, which may be identical or different, are chosen from a C₁-C₄ alkyl radical and a phenyl radical, or form together in G₁ a benzene ring substituted with at least one entity chosen from C₁-C₄ alkyl, C₁-C₄ alkoxy, and NO₂ radicals, or form together in G₂ a benzene ring optionally substituted with at least one entity chosen from C₁-C₄ alkyl, C₁-C₄ alkoxy, and NO₂ radicals;

R₂₀ may also be a hydrogen atom;

Z is chosen from an oxygen atom, sulfur atom, and a group —NR₁₉;

M is chosen from —CH, —CR(R denoting C₁-C₄ alkyl), and —NR₂₂(X⁻)_(r);

K is chosen from —CH, —CR(R denoting C₁-C₄ alkyl), and —NR₂₂(X⁻)_(r);

P is chosen from —CH, —CR(R denoting C₁-C₄ alkyl), and —NR₂₂(X⁻)_(r);

r is 0 or 1;

R₂₂ is chosen from an O⁻ atom, a C₁-C₄ alkoxy radical, and a C₁-C₄ alkyl radical;

R₂₃ and R₂₄, which may be identical or different, are chosen from a hydrogen atom, a halogen atom chosen from chlorine, bromine, iodine and fluorine, and a C₁-C₄ alkyl, C₁-C₄ alkoxy, or an —NO₂ radical;

X⁻ is an anion chosen, for example, from chloride, iodide, methyl sulfate, ethyl sulfate, acetate, and perchlorate;

with the proviso that,

if R₂₂ is O⁻ then r denotes zero;

if K or P or M are —N—(C₁-C₄)alkyl X⁻, then R₂₃ or R₂₄ are hydrogen atoms;

if K is —NR₂₂(X⁻)_(r), then M=P=—CH or —CR;

if M is —NR₂₂(X⁻)_(r), then K=P=—CH or —CR;

if P is —NR₂₂(X⁻)_(r), then K=M and are —CH or —CR;

if Z is a sulfur atom with R₂₁ being a C₁-C₄ alkyl, then R₂₀ is not a hydrogen atom;

if Z is —NR₂₂ with R₁₉ being a C₁-C₄ alkyl, then at least one of the radicals R₁₈, R₂₀ or R₂₁ of the group of structure G₂ is other than a C₁-C₄ alkyl radical;

the symbol J represents:

(a) a group of structure J₁ below:

wherein:

R₂₅ is chosen from a hydrogen atom, a halogen atom chosen from chlorine, bromine, iodine, and fluorine, a C₁-C₄ alkyl or C₁-C₄ alkoxy radical, and an —OH, —NO₂, —NHR₂₈, —NR₂₉R₃₀ or C₁-C₄—NHCOalkyl radical, or forms with R₂₆ a 5- or 6-membered ring optionally containing at least one heteroatom chosen from nitrogen, oxygen, and sulfur;

R₂₆ is chosen from a hydrogen atom, a halogen atom chosen from chlorine, bromine, iodine, and fluorine, and a C₁-C₄ alkyl or C₁-C₄ alkoxy radical, or forms with R₂₇ or R₂₈ a 5- or 6-membered ring optionally containing at least one heteroatom chosen from nitrogen, oxygen, and sulfur;

R₂₇ is chosen from a hydrogen atom, an —OH radical, a radical —NHR₂₈ and a radical —NR₂₉R₃₀;

R₂₈ is chosen from a hydrogen atom, a C₁-C₄ alkyl radical, a C₁-C₄ monohydroxyalkyl, C₂-C₄ polyhydroxyalkyl radical, and a phenyl radical;

R₂₉ and R₃₀, which may be identical or different, are chosen from a C₁-C₄ alkyl radical, a C₁-C₄ monohydroxyalkyl, and a C₂-C₄ polyhydroxyalkyl radical;

(b) a 5- or 6-membered nitrogenous heterocyclic group, which may contain other heteroatoms and/or carbonyl groups and may be substituted with at least one C₁-C₄ alkyl, amino or phenyl radical, and for example, a group of structure J₂ below:

wherein:

R₃₁ and R₃₂, which may be identical or different, are chosen from a hydrogen atom, a C₁-C₄ alkyl radical, and a phenyl radical;

Y is chosen from a —CO— radical and a

radical;

n=0 or 1, wherein, when n denotes 1, U denotes a —CO— radical.

In structures (I) to (IV) defined above, the C₁-C₄ alkyl or alkoxy group, for example, denotes methyl, ethyl, butyl, methoxy, or ethoxy.

Among the compounds of formulae (I) and (III), the following compounds are non-limiting examples:

Among the azo direct dyes of which non-limiting mention may be made are the following dyes, described in the Color Index International, 3rd edition:

Disperse Red 17;

Basic Red 22;

Basic Red 76;

Basic Yellow 57;

Basic Brown 16;

Basic Brown 17; and

Disperse Black 9.

Non-limiting mention may also be made of 1-(4′-aminodiphenylazo)-2-methyl-4-bis(β-hydroxyethyl)aminobenzene.

Among the quinone direct dyes of which non-limiting mention may be made are the following dyes:

Disperse Red 15;

Solvent Violet 13;

Disperse Violet 1;

Disperse Violet 4;

Disperse Blue 1;

Disperse Violet 8;

Disperse Blue 3;

Disperse Red 11;

Disperse Blue 7;

Basic Blue 22;

Disperse Violet 15;

Basic Blue 99;

and also the following compounds:

-   1-N-methylmorpholiniumpropylamino-4-hydroxyanthraquinone; -   1-aminopropylamino-4-methylaminoanthraquinone; -   1-aminopropylaminoanthraquinone; -   5-β-hydroxyethyl-1,4-diaminoanthraquinone; -   2-aminoethylaminoanthraquinone; and -   1,4-bis(β,γ-dihydroxypropylamino)anthraquinone.

Among the azine dyes of which non-limiting mention may be made are the following compounds:

Basic Blue 17; and

Basic Red 2.

Among the triarylmethane dyes that may be used according to the present disclosure, non-limiting mention may be made of the following compounds:

Basic Green 1;

Basic Violet 3;

Basic Violet 14;

Basic Blue 7; and

Basic Blue 26.

Among the indoamine dyes that may be used according to the present disclosure, non-limiting mention may be made of the following compounds:

-   2-β-hydroxyethylamino-5-[bis(β-4′-hydroxyethyl)amino]anilino-1,4-benzoquinone; -   2-β-hydroxyethylamino-5-(2′-methoxy-4′-amino)anilino-1,4-benzoquinone; -   3-N-(2′-chloro-4′-hydroxy)phenylacetylamino-6-methoxy-1,4-benzoquinone     imine; -   3-N-(3′-chloro-4′-methylamino)phenylureido-6-methyl-1,4-benzoquinone     imine; and -   3-[4′-N-(ethyl,carbamylmethyl)amino]phenylureido-6-methyl-1,4-benzoquinone     imine.

Among the dyes of tetraazapentamethine type that may be used according to the present disclosure, non-limiting mention may be made of the compounds:

X⁻ is an anion chosen, for example, from chloride, iodide, methyl sulfate, ethyl sulfate, acetate, and perchlorate.

Among the polychromophoric dyes, non-limiting mention may be made of symmetrical or nonsymmetrical azo and/or azomethine (hydrazone) di- or trichromophoric dyes comprising, on the one hand, at least one optionally fused 5- or 6-membered aromatic heterocycle, comprising at least one quaternized nitrogen atom engaged in the heterocycle and optionally at least one other heteroatom (such as nitrogen, sulfur, or oxygen), and, on the other hand, at least one optionally substituted phenyl or naphthyl group, optionally bearing at least one group OR with R representing a hydrogen atom, an optionally substituted C₁-C₆ alkyl radical, an optionally substituted phenyl nucleus, or at least one group N(R′)₂ with R′, which may be identical or different, being chosen from a hydrogen atom, an optionally substituted C₁-C₆ alkyl radical or an optionally substituted phenyl nucleus; the radicals R′ possibly forming, with the nitrogen atom to which they are attached, a saturated 5- or 6-membered heterocycle, or alternatively one and/or both the radicals R′ may each form, with the carbon atom of the aromatic ring located ortho to the nitrogen atom, a saturated 5- or 6-membered heterocycle.

Aromatic cationic heterocycles of which non-limiting mention may be made include 5- or 6-membered rings containing 1 to 3 nitrogen atoms and, for example, 1 or 2 nitrogen atoms, one being quaternized; the heterocycle moreover being optionally fused to a benzene nucleus. It should similarly be noted that the heterocycle may optionally comprise another heteroatom other than nitrogen, for instance sulfur or oxygen.

If the heterocycles or phenyl or naphthyl groups are substituted, they are substituted, for example, with at least one C₁-C₈ alkyl radical optionally substituted with a hydroxyl, C₁-C₂ alkoxy, C₂-C₄ hydroxyalkoxy, acetylamino or amino group substituted with one or two C₁-C₄ alkyl radicals optionally bearing at least one hydroxyl group, or the two radicals possibly forming, with the nitrogen atom to which they are attached, a 5- or 6-membered heterocycle, optionally comprising another heteroatom identical to or different than nitrogen; a halogen atom; a hydroxyl group; a C₁-C₂ alkoxy radical; a C₂-C₄ hydroxyalkoxy radical; an amino radical; an amino radical substituted with one or two identical or different C₁-C₄ alkyl radicals, optionally bearing at least one hydroxyl group.

These polychromophores are connected together via at least one linker optionally comprising at least one quaternized nitrogen atom that is optionally engaged in a saturated or unsaturated, optionally aromatic heterocycle.

For example, the linker may be a linear, branched, or cyclic C₁-C₂₀ alkyl chain, optionally interrupted with at least one heteroatom (such as nitrogen or oxygen) and/or with at least one group comprising such a heteroatom (CO or SO₂), optionally interrupted with at least one heterocycle optionally fused to a phenyl nucleus and comprising at least one quaternized nitrogen atom engaged in the ring and optionally at least one other heteroatom (such as oxygen, nitrogen, or sulfur), optionally interrupted with at least one substituted or unsubstituted phenyl or naphthyl group, optionally at least one quaternary ammonium group substituted with two optionally substituted C₁-C₁₅ alkyl groups; with the proviso that the linker does not comprise any group chosen from nitro, nitroso, and peroxy groups.

The bonding between the linker and each chromophore may, for example, take place via a heteroatom substituent on the phenyl or naphthyl nucleus or via the quaternized nitrogen atom of the cationic heterocycle.

The at least one dye may comprise identical or different chromophores.

As examples of such dyes, reference may be made, for example, to Patent Publication Nos. EP 1 637 566, EP 1 619 221, EP 1 634 926, EP 1 619 220, EP 1 672 033, EP 1 671 954, EP 1 671 955, EP 1 679 312, EP 1 671 951, EP 167 952, EP 167 971, WO 06/063 866, WO 06/063 867, WO 06/063 868, WO 06/063 869, EP 1 408 919, EP 1 377 264, EP 1 377 262, EP 1 377 261, EP 1 377 263, EP 1 399 425, EP 1 399 117, EP 1 416 909, EP 1 399 116, and EP 1 671 560.

It is also possible to use the cationic direct dyes mentioned in, for example, European Patent Application Publication No. EP 1 006 153; European Patent Application Publication Nos. EP 1 433 472, EP 1 433 474, EP 1 433 471 and EP 1 433 473, and also EP 6 291 333.

Among the natural direct dyes that may be used according to the present disclosure, non-limiting mention may be made of lawsone, juglone, alizarin, purpurin, carminic acid, kermesic acid, purpurogallin, protocatechaldehyde, indigo, isatin, curcumin, spinulosin, apigenidin, and orceins. It is also possible to use extracts or decoctions containing these natural dyes, for example henna-based poultices or extracts.

When present, the at least one direct dye may be present in an amount ranging from 0.0001% to 10% by weight and, for example, from 0.005% to 5% by weight relative to the total weight of the composition.

The at least one composition (C) may comprise one and/or the other types of dyes. For example, it may optionally comprise two dye compositions, one comprising the at least one oxidation dye, and the other comprising the at least one direct dye. Another component of the at least one composition (C) is the at least one organic amine having a pKb at 25° C. of less than 12, for example less than 10, such as less than 6.

It should be noted that this is the pKb corresponding to the function of highest basicity.

According to at least one aspect of the present disclosure, the at least one organic amine comprises one or two functional groups chosen from primary, secondary, and tertiary amine functional groups, and at least one entity chosen from linear and branched C₁-C₈ alkyl group bearing at least one hydroxyl radical.

Organic amines chosen from alkanolamines such as mono-, di-, and trialkanolamines, comprising one to three identical or different C₁-C₄ hydroxyalkyl radicals, may be, for example, used in the present disclosure.

Among the compounds of this type of which non-limiting mention may be made are monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, N-dimethylaminoethanolamine, 2-amino-2-methyl-1-propanol, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, 3-amino-1,2-propanediol, 3-dimethylamino-1,2-propanediol, and tris(hydroxymethylamino)methane.

The organic amines of formula:

wherein W is a C₁-C₆ alkylene residue optionally substituted with a hydroxyl group or C₁-C₆ alkyl radicals; Rx, Ry, Rz and Rt, which may be identical or different, are chosen from a hydrogen atom and C₁-C₆ alkyl, C₁-C₆ hydroxyalkyl, and C₁-C₆ aminoalkyl radicals, are non-limiting examples also suitable for use.

Non-limiting examples of such amines that may be mentioned include 1,3-diaminopropane, 1,3-diamino-2-propanol, spermine, and spermidine.

According to at least one aspect of the present disclosure, the at least one organic amine is chosen from amino acids.

For example, the amino acids that may be used are of natural or synthetic origin, in L, D, or racemic form, and comprise at least one acid functional group chosen from, for example, carboxylic acid, sulfonic acid, phosphonic acid, and phosphoric acid functional groups. The amino acids may be in their neutral or ionic form.

For example, the amino acids can be chosen amino acids comprising an additional amine functional group optionally included in a ring or in a ureido functional group.

Such basic amino acids are, for example, chosen from those of formula (I):

wherein R is chosen from:

The compounds of formula (I) include histidine, lysine, arginine, ornithine, and citrulline.

As amino acids that may be used in the present disclosure, non-limiting mention may be made of, for example, aspartic acid, glutamic acid, alanine, arginine, ornithine, citrulline, asparagine, carnitine, cysteine, glutamine, lysine, histidine, lysine, isoleucine, leucine, methionine, N-phenylalanine, proline, serine, taurine, threonine, tryptophan, tyrosine, and valine.

The amino acids may be used as a mixture with at least one solid or pasty, and, for example, pulverulent, adjuvant. The adjuvants may be chosen from clays, salts, anionic, nonionic, cationic, or zwitterionic surfactants, natural or synthetic thickeners, optionally modified starch, glass beads, silica, Nylon, alumina, titanium dioxide, zeolites, poly(methyl methacrylate) (PMMA), chitosan, maltodextrin, cyclodextrin, mono- or disaccharides, for instance glucose, sucrose, sorbitol, or fructose, zinc oxide, zirconium oxide, resin particles, for instance silicone or silica beads, talc, borosilicates, for example calcium borosilicate, polyethylene, cotton, polytetrafluoroethylene (PTFE), cellulose and its derivatives, superabsorbent compounds, magnesium carbonate, calcium carbonate, corn seeds, polydimethylsiloxane gums, polyacrylamide, porous hydroxyapatite, silk, collagen, sawdust, wrack powder, crosslinked polyvinylpyrrolidone, calcium alginate, active charcoal, and poly(vinylidene chloride/acrylonitrile) particles, for example those sold under the general name EXPANCEL® by the company Akzo Nobel under the particular references EXPANCEL® WE or EXPANCEL DE, and mixtures thereof.

According to at least one aspect of the present disclosure, the at least one organic amine is chosen from amino acids. The amino acids that may be used include, for example, arginine, lysine, histidine, or mixtures thereof.

According to at least one aspect of the present disclosure, the at least one organic amine can be chosen from organic amines of heterocyclic type. Besides histidine that has already been mentioned in the amino acids, non-limiting mention may be made, for example, of pyridine, piperidine, imidazole, triazole, tetrazole, and benzimidazole.

According to at least one aspect of the present disclosure, the at least one organic amine can be chosen from amino acid dipeptides. As amino acid dipeptides that may be used in the present disclosure, non-limiting mention may be made, for example, of carnosine, anserine, and baleine.

According to at least one aspect of the present disclosure, the at least one organic amine is chosen from compounds comprising a guanidine functional group. As amines of this type that may be used in the present disclosure, besides arginine that has already been mentioned as an amino acid, non-limiting mention may be made, for example, of creatine, creatinine, 1,1-dimethylguanidine, 1,1-diethylguanidine, glycocyamine, metformin, agmatine, N-amidinoalanine, 3-guanidinopropionic acid, 4-guanidinobutyric acid, and 2-([amino(imino)methyl]amino)ethane-1-sulfonic acid.

For example, the at least one organic amine present in the at least one composition (C) may be an alkanolamine. For example, the at least one organic amine may be chosen from 2-amino-2-methyl-1-propanol and monoethanolamine. In at least one embodiment of the present disclosure, the at least one organic amine is monoethanolamine.

For example, the at least one organic amine can be present in the composition (C) in a total amount ranging from 0.1% to 50% by weight and, for example, from 0.5% to 20% by weight relative to the weight of the composition (C).

The at least one composition (C) may be an anhydrous or aqueous composition. As discussed above, the term “aqueous composition” means a composition comprising more than 5% by weight of water, for example more than 10% by weight of water, such as more than 20% by weight of water.

For example, in at least one embodiment the at least one composition (C) may be an aqueous composition.

The at least one composition (C) may optionally comprise at least one solvent. The solvents which have been mentioned in the context of the description of the aqueous composition (B) may be used for composition (C), at the concentrations also specified.

The at least one composition (C) may also comprise standard additives such as those that have been listed previously, and reference may be made thereto.

The pH of the at least one composition (C), if it is an aqueous composition, ranges from 2 to 12, for example, from 8 to 11. The pH is adapted using acidifying or basifying agents, such as those mentioned previously.

According to at least one aspect of the present disclosure, compositions (A), (B), and (C) are applied to wet or dry keratin fibers, successively and without intermediate rinsing, and for example, compositions (A), (C) and (B), or (C), (A) and (B) are applied successively and without intermediate rinsing.

According to at least one aspect of the present disclosure, the composition resulting from the mixing, prior to application, of compositions (A) and (C), and then the at least one composition (B), are successively applied and without intermediate rinsing.

According to at least one aspect of the present disclosure, the composition obtained by extemporaneous mixing, before application, of compositions (A), (B), and (C) is applied to the wet or dry keratin fibers.

According to the aspects described above, the value of the weight ratio R1 of the amounts of compositions ((A)+(C))/(B) and the value of the weight ratio R2 of the amounts of compositions (A)/(C) range from 0.1 to 10 and, for example, from 0.3 to 3.

According to at least one embodiment of the present disclosure, the at least one composition (B) ranges from 50% to 70% of the total weight of the mixture of compositions (A), (B) and (C) to be applied to the hair.

In addition, according to the process of the present disclosure, the mixture present on the fibers (resulting either from the extemporaneous mixing of the compositions or from the successive application of these compositions) is left in place for a period of time sufficient to develop a coloration. For example for a period of time ranging from about 1 minute to 1 hour and, for example, from 5 minutes to 30 minutes.

The temperature during the process ranges, for example, from room temperature (ranging from 15° C. to 25° C.) to 80° C. and, for example, ranges from room temperature to 60° C.

After the treatment, the human keratin fibers are optionally rinsed with water, optionally washed with a shampoo and then rinsed with water, before being dried or left to dry.

It should be pointed out that if the at least one composition applied to the hair (comprising compositions (A), (B), and (C)) comprised aqueous ammonia, its content would, for example, be less than or equal to 0.03% by weight of the final composition (expressed as NH₃), such as less than or equal to 0.01% by weight relative to the final composition. It is indicated that the final composition results from the mixing of compositions (A), (B), and (C); these mixtures being prepared either before application to the keratin fibers (extemporaneous preparation) or directly on the keratin fibers (successive applications with or without premixing and without intermediate rinsing).

However, in at least one embodiment of the present disclosure, compositions (A), (B), and (C) do not comprise aqueous ammonia.

The present disclosure also relates to a multi-compartment device or kit comprising at least one first compartment containing the at least one anhydrous composition (A), at least one second compartment containing at least one composition (B) comprising at least one oxidizing agent, and at least one third compartment containing at least one composition (C) comprising at least one dye chosen from oxidation dyes and direct dyes, and at least one organic amine having a pKb of less than 12 at 25° C.

The present disclosure also relates to a method of making a ready-to-use dyeing composition comprising separately making:

at least one anhydrous cosmetic composition (A) comprising at least one fatty substance and at least one surfactant;

at least one composition (B) comprising at least one oxidizing agent; and

at least one composition (C) comprising at least one dye chosen from oxidation dyes and direct dyes, and at least one organic amine whose pKb is less than 12 at 25° C.; and combining said compositions (A), (B), and (C) at the time of use.

Other than in the examples, or where otherwise indicated, all numbers expressing quantities of ingredients, reaction conditions, and so forth used in the specification and claims are to be understood as being modified in all instances by the term “about.” Accordingly, unless indicated to the contrary, the numerical parameters set forth in the specification and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by the present disclosure. At the very least, and not as an attempt to limit the application of the doctrine of equivalents to the scope of the claims, each numerical parameter should be construed in light of the number of significant digits and ordinary rounding approaches.

Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the disclosure are approximations, unless otherwise indicated the numerical values set forth in the specific examples are reported as precisely as possible. Any numerical value, however, inherently contains certain errors necessarily resulting from the standard deviation found in their respective testing measurements.

The examples that follow serve to illustrate the present disclosure without, however, being limiting in nature.

EXAMPLE 1

The following compositions were prepared (contents expressed in grams):

Composition (A)

Oxyethylenated (4 EO) sorbitan monolaurate 21.67 Fumed silica of hydrophobic nature 11 Liquid petroleum jelly qs 100

Composition (C)

para-phenylenediamine 6.55 Resorcinol 4.95 2-Methylresorcinol 1.86 2,4-Diaminophenoxyethanol HCl 0.15 Sodium metabisulfite 0.455 Erythorbic acid 0.31 Pure monoethanolamine 40.07 Water qs 100

At the time of use, the dye mixture was obtained by mixing together:

9 parts by weight of composition (A);

1 part by weight of composition (C); and

10 parts by weight of an aqueous oxidizing composition comprising 6% of hydrogen peroxide at pH 2.3 and comprising about 80% water (B).

The mixture obtained, having a pH around 10, was then applied to a lock of natural hair containing 90% white hairs (NW) and to a permanent-waved NW lock (PWW).

The leave-on time was 30 minutes at room temperature.

After this time, the locks were rinsed, and then washed with an ELSÈVE multivitamin shampoo.

The color of the hair was determined by using the L*a*b* system, with a MINOLTA CM2002® spectrophotometer.

According to this system, L* indicates the lightness. The lower the value of L*, the more intense is the color of the hair. The chromaticity coordinates are expressed by the parameters a* and b*, a* indicating the axis of red/green shades and b* the axis of yellow/blue shades.

The selectivity of the coloration is the variation of the color between natural colored hair and permed colored hair. Natural hair is representative of the nature of the hair at the root, and the permed hair is representative of the nature of the hair at the tip.

The selectivity is measured by:

ΔE, which is the color variation between a natural colored lock and a permed colored lock, is obtained from the following formula:

ΔE=√{square root over ((L*−L _(o)*)²+(a*−a _(o)*)²+(b*−b _(o)*)²)}{square root over ((L*−L _(o)*)²+(a*−a _(o)*)²+(b*−b _(o)*)²)}{square root over ((L*−L _(o)*)²+(a*−a _(o)*)²+(b*−b _(o)*)²)}

wherein L* indicates lightness and a* and b* are the chromaticity coordinates of the natural colored locks whereas L₀* indicates the lightness and a₀* and b₀* are the chromaticity of the permed colored locks. A lower value of ΔE indicates lower selectivity of the coloration and more uniform color along the hair from the tip to the roots.

As shown in the table below, the composition of the present disclosure led to matt, powerful, and sparingly selective dyeing.

L* a* b* Selectivity NW 20.37 2.53 3.83 3.18 PWW 17.78 1.68 2.19

EXAMPLE 2

The following compositions were prepared:

Composition (B) (Identical to Example 1)

Composition (C)

1-Hydroxy-4-aminobenzene 3.27 2-Amino-3-hydroxypyridine 3.30 Sodium metabisulfite 0.455 Erythorbic acid 0.31 Pure monoethanolamine 40.0 Oleyl alcohol polyglycerolated with 2 mol of glycerol 2.1 Oleyl alcohol polyglycerolated with 4 mol of glycerol 3.0 AM Oleic acid 1.58 Oleylamine containing 2 mol of ethylene oxide 3.69 (ETHOMEEN 012 from Akzo) Diethylaminopropyl laurylaminosuccinamate, sodium salt 1.58 AM (55% active material) Oleyl alcohol 2.64 Oleic acid diethanolamide 6.32 Ethyl alcohol 3.69 Propylene glycol 1.84 Dipropylene glycol 0.26 Propylene glycol monomethyl ether 4.74 Demineralized water qs 100 g

Dyeing was performed under the same conditions as those detailed in Example 1.

As shown in the table below, the composition of the present disclosure led to a coppery, powerful, and sparingly selective dyeing.

L* a* b* Selectivity NW 42.23 19.29 29.42 2.09 PWW 42.47 21.34 29.73 

1. A process for dyeing human keratin fibers in the presence of at least one oxidizing agent, comprising applying to said fibers: at least one anhydrous cosmetic composition (A) comprising at least one fatty substance and at least one surfactant; at least one composition (B) comprising at least one oxidizing agent; at least one composition (C) comprising at least one dye chosen from oxidation dyes and direct dyes; and at least one organic amine having a pKb less than 12 at 25° C.
 2. A process according to claim 1, wherein the at least one fatty substance is chosen from liquid petroleum jelly, polydecenes, and liquid esters.
 3. A process according to claim 1, wherein the at least one fatty substance is present in an amount ranging from 10% to 99% by weight relative to the weight of the at least one composition (A).
 4. A process according to claim 1, wherein the at least one surfactant present in the at least one composition (A) is a nonionic surfactant chosen from monooxyalkylenated, polyoxyalkylenated, monoglycerolated, and polyglycerolated nonionic surfactants.
 5. A process according to claim 1, wherein the at least one surfactant is present in an amount ranging from 0.1% to 50% by weight relative to the weight of the at least one anhydrous composition (A).
 6. A process according to claim 1, wherein the at least one organic amine further comprises one or two functional groups chosen from primary, secondary, and tertiary amine functional groups, and at least one group chosen from linear and branched C₁-C₈ alkyl group bearing at least one hydroxyl radical.
 7. A process according to claim 6, wherein the at least one organic amine is: an alkanolamine chosen from mono-, di-, and trialkanolamines, comprising from one to three identical or different C₁-C₄ hydroxyalkyl radicals, or a compound of formula:

wherein W is chosen from C₁-C₆ alkylene residues optionally substituted with a hydroxyl group; Rx, Ry, Rz, and Rt, which may be identical or different, are chosen from a hydrogen atom and C₁-C₆ alkyl, C₁-C₆ hydroxyalkyl, and C₁-C₆ aminoalkyl radicals.
 8. A process according to claim 1, wherein the at least one organic amine is an alkanolamine.
 9. A process according to claim 1, wherein the at least one organic amine is chosen from 2-amino-2-methyl-1-propanol, and monoethanolamine.
 10. A process according to claim 1, wherein the at least one organic amine is chosen from the amino acids of formula (I):

wherein R is chosen from:


11. A process according to claim 1, wherein the at least one organic amine is chosen from arginine, histidine, and lysine.
 12. A process according to claim 1, wherein the at least one organic amine is present in a total amount ranging from 0.1% to 40% by weight relative to the weight of the at least one composition (C).
 13. A process according to claim 12, wherein the at least one organic amine is present in a total amount ranging from 0.5% to 20% by weight relative to the weight of composition (B).
 14. A process according to claim 1, wherein the compositions (A), (B), and (C) are successively applied without intermediate rinsing.
 15. A process according to claim 1, wherein the composition resulting from the mixing, prior to application, of compositions (A) and (C), and the composition (B), are successively applied without intermediate rinsing.
 16. A process according to claim 1, wherein a composition obtained by extemporaneous mixing, before application, of the compositions (A), (B), and (C) is applied.
 17. A process according to claim 1, wherein the value of the weight ratio R1 of the amounts of compositions ((A)+(C))/(B) and the value of the weight ratio R2 of the amounts of compositions (A)/(C) range from 0.1 to
 10. 18. A process according to claim 17, wherein the value of the weight ratio R1 of the amounts of compositions ((A)+(C))/(B) and the value of the weight ratio R2 of the amounts of compositions (A)/(C) range from 0.3 to
 3. 19. A multi-compartment device comprising at least one first compartment containing at least one anhydrous composition (A) comprising at least one fatty substance and at least one surfactant, at least one second compartment containing at least one composition (B) comprising at least one oxidizing agent, and at least one third compartment containing at least one composition (C) comprising at least one dye chosen from oxidation dyes and direct dyes, and at least one organic amine having a pKb at 25° C. of less than
 12. 20. An anhydrous composition comprising at least one fatty substance, at least one surfactant, at least one dye chosen from oxidation dyes and direct dyes and at least one organic amine having a pKb at 25° C. of less than
 12. 21. A method of making a ready-to-use dyeing composition comprising separately making: at least one anhydrous cosmetic composition (A) comprising at least one fatty substance and at least one surfactant; at least one composition (B) comprising at least one oxidizing agent; and at least one composition (C) comprising at least one dye chosen from oxidation dyes and direct dyes, and at least one organic amine having a pKb of less than 12 at 25° C.; and combining said compositions (A), (B), and (C) at the time of use. 